Mt Vernon ae problem

lmm Posted By lmm, Dec 4, 2018 at 10:08 PM

  1. lmm

    lmm
    New Member 2.
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    Tuesday
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    Loc:
    83876
    My Mt Vernon ae is 3 yrs old. Every once in a while it kind of acts like it wants to do its own thing. No matter what temperature you set the thermostat or if its on manual or auto it just runs at its own temperature, usually cold. It starts, runs for a couple minutes, long enough for blowers to operate then shuts down. it just doesn't seem to do anything like the thermostat says. any advice would be greatly appreciated.
     
  2. kappel15

    kappel15
    Minister of Fire 2.
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    Sep 14, 2014
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    Loc:
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    Do you get any error codes on wall control, And what phase of startup is it in when it quits?
     
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  3. lmm

    lmm
    New Member 2.
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    Tuesday
    5
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    Loc:
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    No error codes. It ignites, starts as it should but only runs basically until convection blower runs for a few minutes and goes into shut down.Doesn't get to its temp on thermostat.
     
  4. kappel15

    kappel15
    Minister of Fire 2.
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    Sep 14, 2014
    2,005
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    Loc:
    Iowa
    Does it reach running speed? Are you on manual? Does it hit what you have it set at for heat output?
     
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  5. lmm

    lmm
    New Member 2.
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    Tuesday
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    Loc:
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    No.
    On manual it reaches normal operation but never reaches the set thermostat temp (pretty much the same in auto), runs for a short time and goes into shutdown. Starts up again, runs normally for a few minutes and shuts down and so on.
     
  6. kappel15

    kappel15
    Minister of Fire 2.
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    Sep 14, 2014
    2,005
    404
    Loc:
    Iowa
    Check and make sure the firepot thermocouple is touching the inside end of the cover, or it will give false readings that could cause this. Also if the cover is full of ash insulating the fptc. Should be sticking into firepot an inch also. A faulty firepot tc could also be causing this. kap
     
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  7. lmm

    lmm
    New Member 2.
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    Tuesday
    5
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    Loc:
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    Thanks Kappel15. Took baffle out and cleaned it. Didn't seem to have that much ash behind it but it did make a difference. My chimney vent also just goes out horizontal about four feet and I cleaned it also, again didn't seem like much ash but cleaning both made a difference. I had just cleaned them about two months ago. Thanks, I usually only clean the baffle once a year, I guess it needs it more often.
     
  8. kappel15

    kappel15
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    Sep 14, 2014
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    Loc:
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    Not what I was talking about, but if it works, good deal.kap
     
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  9. lmm

    lmm
    New Member 2.
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    Tuesday
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    Loc:
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    I know you are talking about the thermocouple in fire pot. I had already checked it and firepot. I had pretty much cleaned everything I could think of except the chimney vent and baffle. I usually only clean them a couple times a year but after cleaning them the night before last the stove seems to be working like it should. Why would a little ash build up behind baffle really mess things up? Ive seen it much worse.
     
  10. kappel15

    kappel15
    Minister of Fire 2.
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    Sep 14, 2014
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    Loc:
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    You got me. Usually a dirty stove makes em run bad, not shut down, unless they are a real mess. kap
     
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